Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"com duoi cho snippets" » "co duoc cho snippets", "dam duoi cho snippets", "nam duoi cho snippets", "com nguoi cho snippets", "com duoi chin snippets", "com dung cho snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("com duoi cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("com duoi cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( com duoi cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("com duoi cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.